Adobe Acrobat 9.0 Pro

Should You Upgrade to XI?On June 26 th, Adobe officially ended support for Acrobat 9 and Reader 9, which means that all security and product updates, as well as technical support, have ended.

Adobe Acrobat 9.0 Pro Extended Installation

You added a post to a three year old thread. Since there is no such product as “Adobe Pro” and this thread is about Acrobat Pro 9, can we assume that you are trying “add another user” for Acrobat Pro 9?To “add another user” you need to either buy an additional copy of the software or for volume licenses, add to your license count.Acrobat Pro 9 has been discontinued close to eight years ago and no additional licenses are sold for same. Your options are to buy a perpetual license to Acrobat Pro 2017 or to buy a subscription to Acrobat Pro DC.- Dov.